<template>
  <div>
      <Breadcrmb title1="首页" title2="商品管理" title3="添加商品"></Breadcrmb>

      <el-card style="margin-top:20px">
            <el-alert title="添加商品信息" type="info" center show-icon :closble="false"></el-alert>

            <el-steps style="margin-top:20px" :active="activeIndex-0" finish-status="success" :space="200" align-center>
                <el-step title="基本信息"></el-step>
                <el-step title="商品参数"></el-step>
                <el-step title="商品属性"></el-step>
                <el-step title="商品图片"></el-step>
                <el-step title="商品内容"></el-step>
                <el-step title="完成"></el-step>
            </el-steps>

            <el-form style="margin-top:20px" :model="addForm" :rules="addFormRules" ref="addFormr" label-width="100px" class="demo-ruleForm">
              <el-tabs v-model="activeIndex" :tab-position="'left'" :before-leave="befroeTabLeave"  @tab-click="tabClicked">
                <el-tab-pane label="基本信息" name="0">
                  <el-form-item label="商品名称" prop="goods_name">
                    <el-input v-model="addForm.goods_name"></el-input>
                  </el-form-item>
                  <el-form-item label="商品价格" prop="goods_price">
                    <el-input v-model="addForm.goods_price"></el-input>
                  </el-form-item>
                  <el-form-item label="商品重量" prop="goods_weight">
                    <el-input v-model="addForm.goods_weight"></el-input>
                  </el-form-item>
                  <el-form-item label="商品数量" prop="goods_number">
                    <el-input v-model="addForm.goods_number"></el-input>
                  </el-form-item>
                  <el-form-item label="商品分类"  prop="goods_cat">
                    <el-cascader
                      clearable
                      expand-trigger="hover"
                        v-model="addForm.goods_cat"
                        :options="catelist"
                        :props="cateProps"
                        ></el-cascader>
                  </el-form-item>

                </el-tab-pane>
                <el-tab-pane label="商品参数" name="1">
                  <el-form-item :label="item.attr_name" v-for="item in manyData" :key="item.attr_id">
                    <el-checkbox-group v-model="item.attr_vals">
                      <el-checkbox :label="cd" v-for="(cd,i) in item.attr_vals" :key="i" border></el-checkbox>
                    </el-checkbox-group>
                  </el-form-item>
                </el-tab-pane>
                <el-tab-pane label="商品属性" name="2">
                  <el-form-item :label="item.attr_name" v-for="item in onlyData" :key="item.attr_id">
                    <el-input v-model="item.attr_vals"></el-input>
                  </el-form-item>
                </el-tab-pane>
                <el-tab-pane label="商品图片" name="3">
                  <!--  -->
                  <el-upload
                    class="upload-demo"
                    :action="uploadURL"
                    :on-preview="handlePreview"
                    :on-remove="handleRemove"
                    :file-list="fileList"
                    list-type="picture"
                    :headers="headerObj"
                    :on-success="handleSuccess">
                    <el-button size="small" type="primary">点击上传</el-button>
                  </el-upload>
                </el-tab-pane>
                <el-tab-pane label="商品内容" name="4">
                  <quill-editor v-model="addForm.goods_introduce"></quill-editor>
                  <el-button type="primary" style="margin-top:20px" class="btnAdd" @click="add">添加商品</el-button>
                </el-tab-pane>
              </el-tabs>
            </el-form>
      </el-card>

      <el-dialog title="图片预览" :visible.sync="previewVisible" width="50%">
        <img :src="previewPath" alt="" class="previewImg">
      </el-dialog>
  </div>
</template>

<script> 
import _ from 'lodash'
export default {
  data(){
    return{
      activeIndex:0,
      fileList:[],
      onlyData:[],
      //http://127.0.0.1:8888/api/private/v1/upload
      uploadURL:'http://122.112.253.28:8888/api/private/v1/upload',
      headerObj:{
        Authorization:window.sessionStorage.getItem('token')
      },
      previewPath:'',
      previewVisible:false,
      addForm:{
        goods_name:'',
        goods_price:0,
        goods_weight:0,
        goods_number:0,
        goods_cat:[],
        pics:[],
        goods_introduce:'',
        attrs:[]
      },
      cateProps:{
        value:"cat_id",
        label:'cat_name',
        children:'children',
      },
      catelist:[],
      manyData:[],
      addFormRules:{
          goods_name: [
            { required: true, message: '请输入商品名称', trigger: 'blur' },
          ],
          goods_price: [
            { required: true, message: '请输入商品价格', trigger: 'blur' },
          ],
          goods_weight: [
            { required: true, message: '请输入商品重量', trigger: 'blur' },
          ],
          goods_number: [
            { required: true, message: '请输入商品数量', trigger: 'blur' },
          ],
          goods_cat: [
            { required: true, message: '请输入商品分类', trigger: 'blur' },
          ]
      }
    }
  },
  methods:{
    befroeTabLeave(act,old){
      if(old==='0' && this.addForm.goods_cat.length !== 3){
        this.$message.error('请选择商品分类')
        return false
      }
    },
    // async \
    add(){
      this.$refs.addFormr.validate(async valid =>{
        if(!valid)
        return this.$message.error('请填写必要的表单项！')

        const form=_.cloneDeep(this.addForm)
        form.good_cat=form.goods_cat.join(',')
        // this.addForm.good_cat=this.addForm.goods_cat.join(',')
        this.manyData.forEach(item=>{
          const newInfo={
            attr_id:item.attr_id,
            attr_value:item.attr_vals.join(' ')
          }
          this.addForm.attrs.push(newInfo)
        })
        this.onlyData.forEach(item=>{
          const newInfo={
            attr_id:item.attr_id,
            attr_value:item.attr_vals.join(' ')
          }
          this.addForm.attrs.push(newInfo)
        })
        form.attrs=this.addForm.attrs;
        // console.log(this.addForm);

        const {data:res}=await this.request.post('goods',form)
          console.log(res);
         if(res.meta.status !==201){
            return this.$message.error("添加商品失败！")
        }
        this.$message.success('添加商品成功')
        this.$router.push('/goods')
      })
    },
    async tabClicked(){
      if(this.activeIndex ==='1'){
        const {data:res} =await this.request.get(`categories/${this.cateId}/attributes`,{params:{sel:'many'}})
        console.log(res);
        if(res.meta.status !==200){
                return this.$message.error("获取用户列表失败！")
            }
            console.log(res.data);
            res.data.forEach(item=>{
              item.attr_vals=
              item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
            })
            this.manyData=res.data
      }else if(this.activeIndex ==='2'){
         const {data:res} =await this.request.get(`categories/${this.cateId}/attributes`,{params:{sel:'only'}})
        console.log(res);
        if(res.meta.status !==200){
                return this.$message.error("获取用户列表失败！")
        }
        this.onlyData=res.data
      }
    },
    async getCateList(){
        const {data:res} =await this.request.get('categories')
        if(res.meta.status !==200){
                return this.$message.error("获取用户列表失败！")
            }
            this.catelist=res.data;
    },
    handleRemove(file) {
        console.log(file);
        const filePath=file.response.data.tmp_path
        const i=this.addForm.pics.findIndex(x=>x.pic ===filePath)
        this.addForm.pics.splice(i,1)
        console.log(this.addForm);
      },
      handlePreview(file) {
        console.log(file);
        this.previewPath=file.response.data.url;
        this.previewVisible=true
      },
      handleSuccess(response){
        console.log(response);
        const picInfo={pic:response.data.tmp_path}
        this.addForm.pics.push(picInfo)
        console.log(this.addForm);
      }

  },
  created(){
    this.getCateList();
  },
  computed:{
    cateId(){
      if(this.addForm.goods_cat.length===3){
        return this.addForm.goods_cat[2]
      }
      return null
    }
  }
}
</script>

<style>
.el-step__title {
    font-size: 13px !important;
}
.ql-editor {
    min-height: 300px;
}
</style>